Shingle-machine.



No. 711,533. Patented Oct. 2|, I902.

a. w. HOPER.

' SHINGLE MACHINE.

(Application filed Jun; 18, 1901.) a (No Model.) I 5 Sheets-Sheet I.

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No. 7||, 533. Patented Oct. 2|; I902.

G. W. 'B0PER. l smueuz MACHINE. (Application fi leli June 18', 1901.)

5 Sheets-Sheet 2.

(No Model.)

Y I WWII)!!! I mmlmu W Wiigess'es N0. 7l|, 533. Patented 00L 2| I902.

G. W. RUPER.

SHlNGLE MACHINE.

(Application filed June 18? 1901.)

5 Sheets-$heet 3.

(No Model.)

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Patented Get. 21, I902. G, W. ROPER. SHINGLE MACHINE.

Application filed June 18,.1901. v

(No Model.)

5 Sheets-Sheet 4.

Wilgzsses UNITED STATES PATENT Cl rion;

GEORGE W. RoP R', or NORFOLK, VIRGINIA.

SHINGLli-MACH INE.

SPECIFICATION forming part of Letters Patent No. 711,533, dated October21, 1902.

Application filed June 18, 1901- Serial No. 65,059. No model.)

To all whom it may concern.-

Be it known that I, GEORGE W. ROPER, a citizen of the United States,residing at Norfolk, in the county of Norfolk and State of Virginiahaveinvented a new and useful Shingle-Machine, of which the following isa specification.

This invention relates to shingle-machines,

' and more particularly to a feed mechanism,

and has for its objects, among others, to provide comparatively simplemeans for producing shingles, to facilitate the manufacture of shinglesby increasing the rapidity of the cutting action, and consequentlyrendering the machine susceptible.of'producing a greater number ofshingles in a given time, to avoid binding of the shingle-bolt on thesaw, to simplify this class of machinery, and to render them moreefficient in operation.

With these and other objects in view the invention consists in theconstruction and arran gement of the several parts, which will be morefully hereinafter described and claimed.

In the drawings, Figure 1 is an end elevation of a portion of a band-sawembodying features of adjustment for the saw-blade and showing in endelevation mechanism-for feeding the shingle-bolt. Fig. 2 is a sideelevation of the shingle-bolt-feeding mechanism looking from the outerside of the same. Fig. 3 is a top plan view of a portion of tbe'shinglebolt-feeding mechanism, the carriage being removed. Fig. 4 is atop plan view of the carriage. Fig. 5 is an end elevation of theshingle-bolt-feeding mechanism looking toward the end opposite thatshown by Fig, 1. Fig. 6 is an enlarged top plan view of a por tion ofthe carriage. Fig. 7 is a section on the line 7 7, Fig. 4. Fig. 8 isasecti'on on the line 8 8, Fig.3, with the carriage in position. Fig. 9is a detail broken elevation of a part of the mechanism. Fig. 10 is adetail view of a portion of the rack-operating devices. Fig. 11 is adetail elevation showing the manner of arranging the buffer to check thereturn movement of the carriage.

Similar numerals of reference are employed to indicate correspondingparts in the several views.

The numeral 1 designates a band-saw, with which the improved feedingmechanism hereinafter referred to is preferably. used, though it will beunderstoodthat a circular saw can also be employed with. the saidmechanism. The band-saw includes upper and lower wheels 2 and 3, withwhich the saw-blade 4 engages in the usual manner, the said wheels beingmounted on'suitable shafts, the upper 'shaft being movable for thepurpose of adjustment. Connected to the upper wheelshaft is avertically-movable standard 5,which is guided in an upright 6, and onthe opposite side is a substantially similar standard, which acts as asupport, against which the adjustment is made, it being understood thatprimarily the upper wheel can be moved to establish the necessarytension on the saw. The band-saw in the present instance is provided atone side with guides 15 and guard 16, the guides being adjustable toregulate the direction orangle of cut of the saw-blade passingtherethrough, and both the guides and guard are carried by a frame 17,which is adjustable outwardly and inwardly on the bed of the saw throughthe medium of an adjusting screw-bolt 18, attached thereto and engagingan angle-guide 19, secured to the saw-bed. The-frame 17 also has ashinglecarrier 20 carried thereby and includes a wheel mechanism andbelt, the shingles as cut falling upon thela'tter and conveyed away fromthe saw-blade.

The principal part of the present invention resides in mechanismforfeeding bolts and comprises mechanism for alternately disposing-the boltat an angle to obtainthe necessary shingle pitch, clearing the bolt fromthe saw after the out has been completed, so that on the next movementno injury to the saw will result and the operation of the severalcoactin g devices will not be impeded, and also and extendinglongitudinally thereof are e tracks 24 and 25, the latter both includingflat plates 26, which project beyond the edges of the bed 23, the track24 having a flat bar 27 at the inner edge thereof and the track havingan upstanding flange 28. In the frame 2 is a drive-shaft 29, mounted inseparated bearings 30 and 31 to have a slight longitudinal slidingmovement, and on the outer end of said shaft are drive-pulleys 32 and 33to receive a belt from a suitable power source, the inner end of theshaft being provided with a friction-disk 34, which is secured thereto.The inner bearing30 is secured to a cross support 35, and alsoprojecting therefrom is a fulcrum-bar 36, on which is fulcrumed a lever37, having its inner end yoked around a collar 38, fast on the shaft 29.The lever 37 projects outwardly beyond the outer side of the machine orframe 22, and adjustably con- 1 is secured at about an angleofforty-five de- :grees and is formed with a longitudinal slot 1 57, inwhich a bolt 58 is adj ustably mounted a and serves asa fulcrumoraconnecting means nected thereto is one end of a shifting rod or bar39, which extends along the side of the frame 22 and has its oppositeend movably secured to a hand-lever 40, pivoted to the outer side of theframe at one end, and by moving this hand-lever toward the disk 34 theshaft 29 will be moved inwardly to correspondingly shift the said diskand effect engagement of the latter with the periphery of afriction-wheel 41 in relative position to said disk and fast on atransverse shaft 42. The contacting face of the disk 34 is in a plane ata right angle to the periphery or rim of the wheel 41, and provision ismade for varying the contacting pressure of the said disk with the wheelthrough the medium of a keeper 43, having retaining lugs or projections44 and held in fixed adjustable position by a setscrew 45 on thescrew-threaded extremity 46 of a rod 47, secured to the end of the frame22 above the point of attachment of the handlever 40. When thehand-lever 40 is pushed in the direction to cause the disk 34 to bearagainst the wheel 41, said lever is forced over the keeper 43 and caughtand held by the lugs or projections 44 against accidental disengagement,and by this means the disk 34 will be positively held in operativerelation to the wheel 41. By moving the keeper 43 longitudinally on therod 47 in opposite directions the degree of pressure of the disk againstthe wheel can be regulated and wear compensated for, the said rod 47being inclined downwardly to have the keeper present the portion thereofengaged by the lever 40 at such angle as to accommodate the angle ofsaid hand-lever and have both lugs or projections 44 coact with saidlever to effectually hold the same. When the said hand-lever isdisengaged from the keeper and drawn forward or in the direction of theoperator, the disk 34 will be unshipped or moved from engaging positionwith relation to ,the Wheel 41. It will also be understood that thespeed of the latter wheel will be varied by moving it closer to oroutwardly from the center of the disk 34, and for this purpose saidwheel is splined on theshaft42 by any suitable means and has anoutwardly-projecting arm 48 secured thereto, a lever 49 being movablyattached to the outer end of the said arm and fulcrumed, as at 50, to afulcrum projection 51. The unattached portion 52 of the lever isdeflected inwardly at an angle into the frame and adjustably bears on asupportingbar 53 by a headed bolt 54, the latter being adjustable bymeans of a series of openings 55 in the bar 53 and bears against theouter edge of the portion 52 of the lever 49. Through centrifugal actionit is obvious that the wheel 41 if free would'work outwardly toward theperiphery of the disk 34, and hence it is only necessary to obstructthis outward movement of the wheel in the manner set forth and maintainthe adjustment desired.

On the inner end of the shaft 42 an arm 56 for a sleeve 60, slidinglymounted on an 0s" 'cillating rod 61, said sleeve having an ear 59 whichis engaged by said bolt.

The lower end of the rod 61 is fulcrumed, as at 62, to a dependingportion of the frame 22, so as to have a swinging movement in a verticalplane,

and to the upper end of the said rod one end of a connecting-bar 63 ismovably attached, and the opposite horizontal extremity of the latter isformed with a series of apertures 64 to adjustably connect with adepending projecting member 65 of a carriage 66, and by means of thesaid rod 6i and the connections set forth the carriage is shifted inalternation in opposite directions longitudinally on the frame 22. Themovement of the sleeve 60 on the rod 61 compensates for the differentpositions of the arm 56, and by changing the point of engagement of thebolt 58 in re lation to the arm 56 the rod 61 may be accelerated ordiminished, as may be desired, and to conform to such adjustment theconnecting-bar 63 is correspondingly adjusted. This variation in themovement of the carriage will be commensurate to the differentiation ofthe length of shingles cut, so that when ashingle of maximum length isproduced the movement of the carriage or the interval between thereverse positions assumed by the carriage in drawing away from andfeeding up to'the saw-blade will be longer than when a shorter shingleis produced. The carriage 66 comprises a frame 67, having side bars 68and end bars 69, axles 70 being located near opposite ends of the sidebars and having inner flat-rim wheels 71 and outergrooved rim wheels 72to respectively engage the flat bar 27 and the upstanding flange 28. Thepurpose of this Hat and grooved-rim wheel and corresponding fiat bar andflange arrangement is to insure a true alined movement of the carriagein accordance with the initial adjustment and at the same time reducethe friction as much as possible and which will re sult by the use of asingle pair only of the grooved-rim wheels, it being obvious that thefiat-rim wheels will have less friction in their operation. The carriagehas a slight movement transversely on the said axles to clear the workfrom the saw, and to the outer sides of the side bars 68 plates 74 aresecured and have guard members 75, depending over the bearings 73, toreceive the impact of the 0pposite ends of the axles, and thusdefinitely limit the movement of the carriage. Pairs of spaced hangers76 depend from the side bars 68 and have lower inturned ends 77, whichtake under the edges of the fiat plates 26 on the bed 23 of the frame 22to overcome any possibility of the carriage moving out of place on saidframe, each one of the hangers being strengthened by a diagonal brace78, secured thereto and to the central portion of the adja-' cent sidebar 68. These hangers have a loose relation to the edges of the plates26 and with the provision of the flat-rim wheels on one side of thecarriage will compensate for expansion or contraction of the parts ofthe latter and of the frame 22, whichis of material importance inmaintaining a regular position of the carriage to insure smooth runningof the latter.

The carriage 66 is equipped with devices for alternately changing theangle of the face of the bolt operated upon in reverse planes, so thatthe shingles will be started alternately from the butt and reduced endsthereof, and

thus produce a shingle at each forward movement of the carriage. On theend bars 69 of the carriage flat metal plates 79 are secured, one oneach, and near the inner end of each plate is an upwardly-projectingfulcrum 80,

having a bearing edge curved in the arc of a circle and an upstandinginwardly-overhanging keeper 81. On each plate and movable lengthwisethereof is a rack-bar 82, provided with under teeth 83, extending thefull transverse width thereof for a greater portion of its length, andupwardly-projecting top flange 84 and an inner head 85, formed with aseries of apertures 86, 87, and 88 for adjusting the same to Vary themovement of the rackbar. The rack-bars are identical in shape anddimensions, and the flanges 84 thereof are held under the keepers 81 andhave the outer edge portion of each adjacent to the keepers bracedagainst the individual fulcrums 80. The heads are pivotally held inconnection with castings or slides 89, which have the oppositeextremities of a shifting.- bar 90, held therein by set-screws 91, theterminals of the shifting-bar projecting through the castings or slidesand adapted to contact with stop-bolts 92, upstanding from the innerends of the plates 79, and thereby'limit the inward movement of theshifting-bar and the rack-bars connected thereto. The shiftingbar 90extends longitudinally of the carriage over transverse hearing orsupporting bars 93, which project inwardly over the inner side bar 68 ofthe carriage to hold the bolts of stock from which the shingles are out.On the shifting-bar 90 a pair of knees 94 are adjustably tion by aid ofthe spring, the tension of the spring also'acting when .the hand-lever'98 is turned outwardly past its center to hold the leverwith sufficientforce to resist accidental release. When the handle is turned inwardlyor to the position indicated in Fig. 4, the tension of the spring isreduced tosuch an extent that the remaining end of the bolt may bedisengaged from the dogs by the exercise of slight force. V

In suitable bearings near the outer extremities'of the end bars 69 ofthe carriage the opposite ends of a tumbling-shaft 99 are rotatablymounted, the one end of the said shaft being projected through itsbearing and provided with a squared lock-head 100, which contacts with astiff spring 101 at the lower portion thereof to thus lock the shaft 99after each tumbling operation against accidental movement. On the shaft99 a tumbling-head 102 is rigidly secured and is of substantially squareform, with hooks 103 outstanding from the corners thereof and alldirected in the same manner. On the said shaft 99, under the rack-bars82, are cam-heads104, having duplex diametrically-disposed camprojections 105 to take into the teeth of the rackbars,the camprojections on one cam-head being in a plane at a right angle to thoseof the other head, so that the rack-bars will be alternately engaged andmoved by said cam projections to produce a step-by-step movement andalternately push one casting or slide 89 in advance of the other todispose the bolt at the proper angle relatively to the saw-blade inorder to obtain the proper pitch relatively to theleng'th of the shingleproduced or as may be desired. Freely movable on one of the axles of thecarriage is the one end of an actuating bar 106, which is free to raiseand lower by the movement of the carriage and slides on a wear-plate 107on the upper surface of a cross-support 108, (see Fig. 8,) the free endof said bar 106 being provided with a striking-head109, having in-'clined faces 110. Rigidly secured to the shank of said head'is anupwardly-projecting On one end of the from a clamping-plate 118, bearingon the plate 113, and by loosening the screws 117, and thereby releasingthe plate 118, the plate 113 is free for adj ustment through the mediumof the screw 115, and thus controls the distance the head 109 travelsbefore engaging the striker-plate to thereby regulate the rapidity ofmovement of the tumbling-shaft and the feed of the rack-bars inaccordance with the character of the work to be performed. It will beseen that the cams 105 are adjacent to and located in a plane below thatof the keepers 81 of the rack-bars 82 and that said bars are heldsidewise against the fulcrum S0 and have their inner ends connected tothe castings 89, which support the shaft 90. The latter will be properlyheld in position during the longitudinal movement of the carriage pastthe saw. The rack-bars,as shown by Fig. 1, have the intermediateopenings 87 of the heads 85 thereof engaged by the pivot-bolts therefor,and the said adjustment produces a medium movement for the castingsorslides 89, whereas when the openings 86 are engaged a minimum movementof the slides results, and when the openings 88 are engaged a maximummovement will ensue. These several connected positions of the heads ofthe rack-bars will cause a variation in the angle or pitch of theshingles cut, as the openings 86, 87, and 89 are in the arc of a circle,and the angle of the shiftingbar will be correspondingly changed and theinner face of the bolt likewise adjusted. If the carriage be moved inthe direction of the arrow shown by Fig. at, the actuating-bar 106 willbe drawn over the wear-plate 107 and support 108, so that the head 109thereof will be gradually raised, and thus elevate the catch-bar 111.The upward movement of the catch-bar continues until the terminal hookthereof engages the hook 103 of the tumbling-head 102 in position foroperative contact, and thus the actuatingbar is held elevated. On thereturn movement of the carriage, the actuating-bar being still elevated,the upper inclined face of the head contacts with the striker-plate 113,which causes the said actuating-bar to be forcefully depressed, thusdrawing downwardly on the catch-bar. This downward movement of thecatch-bar gives the tumbling-head onequarter movement, as indicated byFig. 10, and correspondingly actuates the tumblingshaft to cause the camprojection of the cam head then in position to shift one of therackbars, the shaft carrying the cam-head again becoming locked throughthe medium of the squared head on one end thereof. The camhead thatperforms its work in shifting the one rack-bar will then be out ofposition to engage the same rack-bar by the succeeding similar movementof the parts just set forth; but the opposite cam-head will be turned tosuch position that such succeeding movement of the said parts willresult in the actuation of the remaining rack-bar, and this operationwill be continued regularly in alternation until the bolt is used up asfar as practicable. The bearing-boxes 119 for the tumbling-shaft 99 areadj ustable,as shown by Fig. 7, in a vertical direction by means ofbolts 120 and in a horizontal direction by means of set-bolts 121, thisadjustment being provided to take up wear and insure an accurateregistration of the cam projections of the camheads on the saidtumbling-shaft with the teeth of the rack-bars. I11 placing a new bolton the carriage and properly positioning the same it is necessary toprovide some means for preventing the rack-bars from moving anddestroying the accuracy of the operative relation of the several partsand also obviate the tendency toward breakage of the latter owing to theweight of the bolt. For this purpose a manually-controlled catch isprovided in connection with each rack-bar and comprises a shank 122,pivotally connected at one end to an adjustable plate 123, having alongitudinally-extending slot 124, engaged by a clamping-bolt 125, whichenters the end bar 69 of the carriage. The plate 123 is mounted in arecess 126 on the inner side of the end bar, and adjacent thereto is anangle-plate 127, carrying a set-screw 128 in one terminal, saidset-screw having its head bearing against the adjacent terminal of theplate 123 to render the adjustment of the latter positive, as will bereadily understood. The

extremity of the shank opposite that which is pivoted to the plate 123is formed with a yoke 129, whose upper member 130 is formed or providedwith a terminal tooth 131, which is adapted to take into the teeth ofthe rackbar above, and both rack-bars will thus be held against movementin a positive or reliable manner when the terminal teeth 131 of thecatches for the rack-bars are let free for engagement with the adjacentteeth of the latter. Each of the rack-bar catches are held up in anormal position by the upturned terminal 132 of a horizontally-disposedspring 133, which bears against the under side of the shank 122 near theyoke 129, the said spring being pivoted at its opposite terminal to theinner side of the end bar 69 of the carriage below the plane of the saidshank 122, and has bearing upon the head of an intermediate adjustable fulcru m-screw 13 1, seated in one of the longitudinal beams of thecarriage and operating to stiffen the spring or increase the resistanceof the latter. When the shanks 122 are at liberty to so operate, thesprings act to throw them upwardly, and to depress the said shanks andthe terminal teeth thereof a manually-operated shaft 135 islongitudinally disposed in the carriage and has its opposite ends 136increased in dimensions in oval form. The said shaft 135 is operated bya handle or grip 137, secured thereto at a point within easy reach of anoperator, and when turned in one direction the said ends of the shaft135 will be turned to bring their longest axes in vertical position tothereby depress the said shanks 122 and lower the teeth 131 out ofengaging position with the rack-bars and permit the latter to be freelymoved over the plates 79, the ends 136 working between the latter platesand the shanks as the opposed points of resistance. When the shaft isturned in the opposite direction to that just set forth, the shorteraxes of the ends 136 of the shaft 135 will be arranged in a verticalplane in relation to the shanks andpermit the terminal teeth 131 of theyoke 129 to move upwardly into the teeth of the rack-bars. Whenthe'teeth 131 are I depressed, the rack-bars will be free to be shovedoutwardly, so as to place the bolt in proper position to commencecutting the shingles therefrom, and this movement will operate thetumbling-shaft in a direction reverse to that pursued in feeding thebolt, and hence the catch-bar will not interfere with said operation, asthe tumbling-head will turn in such manner as to clear the cornerhookprojections thereof from the terminal hook of the said catch-bar.

The mechanism for causing the carriage to have a slight transversemovement to clear the bolt from the saw-blade succeeding eachshingle-cut made includes a longitudinallydisposed slide 138 in theframe 22, having two vertically-arranged strikers 139 thereon and spacedapart from each other a predetermined distance, and on the said slide138 is a cam-throat 140, formed by two upwardly-projectinginwardly-inclined strips 141 and 142, which are suitably spaced apartfrom each other, the strip 142 having a horizontal extending arm 143,which is below the plane of the upper extremity of the strip 141. To oneside of and above the plane of the slide 138 a cam-shaft 144 is mountedin the frame 22 and has its ends eccentrically reduced and mo anted insuitable bearings 145. This camshaft 144 is provided with ahorizontally-extending arm 146 near one end which has a roller 147thereon to enter or engage the camthroat 140, and when the carriage ismoving in one direction-in feeding the bolt to the saw-blade to cut ashingle, for instance-the striker 139 on the left (see Fig. 8) willcontact with the carriage-axle on the left and move the slide 138sufficiently to cause the roller 147 to be drawn downwardly into thecam-throat 140, and consequently lower the arm 146 and turn the shaft144, so as to bring the maximum projecting portion thereof upwardly, andas said shaft passes through a suitable seat in a cross-bar 148, securedto the under side of the carriage, the latter will be shifted outwardlyon its axles, as hereinbefore set forth, and thus clear the face of thebolt operated upon from the plane of the saw-blade. The carriage willremain in this shifted position until slightly before reaching theopposite limit of its movement, when the right striker will be broughtinto contact with the right carriage-axle and shift the slide 138 in theopposite direction-and raise the roller 147 and arm 146 and turn theshaft 144 in the opposite direction to shift the carriage inwardly j nstas the carriage moves forwardly again for another cutting operation, itbeing understood that one of the rack-bars will have been in theinterval actuated to properly dispose the bolt in relation to the planeof the saw-blade by the mechanism heretofore set forth. The horizontalextension of the strip 142 forms a rest and guide for the roller 147 andinsures a proper direction thereof into the cam-throat 140, and the saidroller will be forced to enter the throat by means oftheupwardlyprojecting extremity of the strip 141. riage is of very materialimportance, as the saw-blade will be less liable to impairment, and thefrictional resistance that would be set up by a drag of the face of thebolt over the saw-blade is avoided.

As an efficient auxiliary to prevent the carriage from overriding thedistance on the frame 22 which it is intended to have it move, a strap149 is attached to a rod 150 at one end of said carriage, and saidcarriage is cushioned on its return movement by a portion thereofstriking a resilient means. This re- This automatic operation of thecarsilient means will preferably consist of a extends through theflooring on which-the machine rests, and is free to move and exertacushioning effect through its inherent resiliency. It will also beunderstood that the cam-heads on the tumbling-shaft have theirprojections extending upwardly through slots in the plates'79, andlikewise the teeth 131 of the shanks 122 also work through slots in saidplates. The parts of the frame 22 and the carriage will be strengthenedby suitable means wherever found necessary, and fea tures of adjustmentand removability of the several parts will be provided in connectionwith the several parts, when desired, other than those specificallyreferred to. a

From the foregoing it will be seen that a band-saw is utilized in aconvenient manner to, saw shingles in conjunction with an oscillating orreciprocating carriage. having an offset clearing movement, thatshingles can be sawed from bolts with less waste in sawkerf and slab,and that the shingles will be smoother and more accurate. In fact, theimproved machine is of such structure as to render the manufacture ofshingles extremely economical.

Having thus described the invention, what is claimed as new is- 1. a Ina shingle-machine, the combination with a saw, of a shingle-bolt-feedingmechanism comprising a frame, a carriage movable on the said frame,andmeans for slightly shifting the carriage in a transversedirectionautomatically and consisting of a cam device mounted in the frame andengaging a portion of the carriage, a slide in the frame, and operativemechanism between the cam device and slide, and strikers extendingupwardly from the slide to contact with opposite end portions of thecarriage.

2. In a shingle-machine, the combination with a saw, of ashingle-bolt-feeding mechanism comprising aframe, a carriage movable onthe frame and having axles at opposite extremities havinga looseconnection to permit the carriage to be transversely moved thereon,means depending from the carriage-frame over the plane of the ends ofthe axles of said carriage to limit the transverse movement of thelatter, and means for transversely moving the carriage on its axles.

3. In a shingle-machine, the combination with a saw, of ashingle-bolt-feeding mechanism comprising a frame,a carriage movable onthe frame and having a frame with axles in loose connection withopposite extremities thereof, depending guards to contact with theopposite ends of the axles, and means for transversely moving thecarriage-frame on its axles.

4. In a shingle-machine, the combination with a saw, of ashingle-bolt-feeding mechanism comprising a frame, a carriagelongitudinally movable on the frame and of itself having a frame mountedon axles, and means for slightly shifting the carriage automatically ina transverse direction consisting of a cam -shaft engaging the carriageprovided with an arm, a slide in the frame supporting the carriagehaving a cam-throat into which said arm extends, and a pair ofupstanding strikers on the slide to engage opposite extremities of thecarriageframe.

5. In a shingle-machine, the combination with a saw, of ashingle-bolt-feeding mechanism comprising a frame, a carriagelongitudinally movable on the frame and of itself having a frame mountedon axles, and means for slightly shifting the carriage automatically ina transverse direction consisting of a cam-shaft engaging the carriageand provided with an arm having a terminal roller, aslide in the framesupporting the carriage having a cam-throat formed by twoupwardly-projecting inwardly-inclined strips spaced apart from eachother to receive the said roller between them, and a pair of upstandingstrikers on the slide to engage opposite extremities of thecarriage-frame.

6. In a shingle-machine, the combination with a saw, of ashingle-bolt-feeding mechanism comprising a supporting-frame, a carriagelongitudinally movable on said frame and having means for supporting ashinglebolt, a shifting-bar having bolt-engaging dogs, slides carryingsaid shifting-bar and adapted to move transversely of the carriage,guided rack-bars arranged on the carriage, means for independently andadjustably con meeting the rack-bars to the slides thereby to adjust thedegree of inclination of the shifterbar, and means for alternatelyfeeding the rack-bars to dispose the shingle-bolt face in opposingangular planes.

7. In a shingle-machine, the combination with a saw, of ashingle-bolt-feeding mechanism comprising a supporting-frame, a carriagelongitudinally movable on the frame and having means for supporting ashinglebolt, an inner shifting-bar, bolt-engaging dogs carried thereby,slides adapted for movement transversely on the carriage and carryingsaid shifting-bar, rack-bars guided on the carriage, means foradjustably pivoting the inner ends of said rack-bars to the slides,curved fulcrum-plates for engagement with the outer side of saidrack-bars, keepers for preventing excessive upward movement of therack-bars, and means foralternately feeding said rack-bars to disposethe shingle-bolt face in reverse angular planes.

8. In a shingle-machine, the combination with a saw, of ashingle-bolt-feeding mechanism comprising a frame having actuatingdevices therein, a carriage longitudinally movable on said frame andhaving means for supporting a shingle-bolt, an inner. shiftingbarattached to opposite slides to which the inner ends of the rack-bars arepivoted to have lateral adjustment, said rack-bars, a tumbling-shaft andcam-heads for actuating said rack-bars, a tumbling-head on the saidshaft, an actuating-bar loosely hinged at one end to one extremity ofthe carriage and having its opposite end free and provided with anangular head, a catch-bar attached to the free end of the actuating-barfor operation with the tumbling-head, the actuating-bar beingautomatically elevated by the movement of the carriage, and ahorizontally-disposed longitudinally-slotted striker-plate on one end ofthe frame for automatically depressing the free end of theactuating-bar.

9. In a shingle-machine, the combination with a saw, of ashingle-bolt-feeding mechanism comprising a frame having actuatingdevices therein, a carriage movable on said frame and having means forsupporting and feedinga shingle-bolt to the saw, a tumblingshaft havingdevices for operating the feeding means on the carriage and alsoprovided with a tumbling-head, an actuating-bar attached at one end tothe carriage to have a free elevation and a positive depression andprovided with a catchbar at its free end to operate in conjunction withthe said tumbling-head to turn the tumbling-shaft, and ahorizontally-disposed longitudinally-slotted striker-plate on one end ofthe frame for engaging and automatically depressing the free end of theactuating-bar.

10. In a shingle-machine, the combination with a saw, of ashingle-bolt-feeding mechanism comprising a frame having actuatingdevices thereon, a carriage movable on the frame and having means forsupporting and feeding a shingle-bolt to the saw, a shaft havingmechanism operatively connected to the feeding means on the carriage, atumblinghead secured to said shaft, a rectangular block carried by theshaft, a spring adapted to engage with the flattened side of the blockto assist in the rotative movement of the shaft and to lock the same atthe completion of each intermittent rotative movement, an actuating barfulcrumed to the carriage, a cross-bar carried by the frame and servingas a support and as a means for elevating the actuating-bar, a catch-barsecured to said actuating-bar and adapted to engage with and turn thetumblinghead, and a longitudinally-adjustable striker-plate carried bythe frame and adapted to engage and lower the actuatingbar, and meansfor locking the striker-plate in any position to which it may beadjusted.

11. In a shingle-machine, the combination with a-saw, of ashingle-bolt-feedin g mechanism comprising a supporting-frame, acarriage movable on the frame and having boltengaging dogs, carryingdevices therefor, a pair of rack-bars arranged on the carriage, meansfor independently and adjustably connecting the rack-bars to thedog-carrying devices, thereby to adjust the degree of inclination of thebolt, means for operating said rackbars, pivoted arms having terminalteeth for engagement with the rack-bars, means for adjusting thepivot-points of said arms, springs engaging under the arms and adaptedto force the same into engagement with said rack-bars, and a man[tally-operated shaft having elliptical end portions for effecting amovement of said arms to inoperative position, substantially asspecified.

12. In a shingle-bolt-feeding mechanism, the combination of a framehaving plates at the upper side portions thereof which project outwardlybeyond the said side portions,a carriagelongitudinally movable on theframe, depending hangers havinglower angular ends to take under theprojecting portions of said plates, and braces connected to the lowerextremities of the hangers and to the central side portions of thecarriage.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

GEORGE w. RoPER.

Witnesses:

CHAS. N. NORSWORTHY, GEO. S. COLLINS.

